Institute's contributions: Recent submissions
Now showing items 1041-1060 of 9252
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Recent changes in the prominent modes of Indian Ocean dipole in response to the tropical Pacific Ocean SST patterns
(2019)The present study examines the prominent patterns of Indian Ocean dipole (IOD) associated with the recent changes in the Pacific Ocean variability centered around 1998. EOF analysis of boreal fall (September through November ... -
Modelling of internal tides in the western Bay of Bengal: Characteristics and Energetics
(2019)Generation and propagation of internal tides in the western Bay of Bengal (BoB) are investigated using observations from Acoustic Doppler Current Profilers and simulations from a very high resolution numerical ocean model. ... -
Variability of intraseasonal oscillations and synoptic signals in sea surface salinity in the Bay of Bengal
(2019)Intraseasonal oscillations (ISOs) significantly impact southwest monsoon precipitation and Bay of Bengal (BoB) variability. The response of ISOs in sea surface salinity (SSS) to those in the atmosphere is investigated in ... -
Spatio-temporal variations in sulfur-oxidizing and sulfate-reducing bacterial activities during upwelling, off south-west coast of India
(2019)The Arabian Sea, off SW India, is becoming more anoxic in recent years. Poor ventilation affects microbial degradation of organic matter in oxygen minimum zone (≤2.85 ml l -1 O 2 , ≤0.02µM NO 2 ) and anoxic marine zone ... -
Magnetic Mineralogical Approach for the Exploration of Gas Hydrates in the Bay of Bengal
(2019)We evaluate the environmental magnetic, geochemical, and sedimentological records from three sediment cores from potential methane-hydrate bearing sites to unravel linkages between sedimentation, shale tectonics, magnetite ... -
Seasonal distribution of trace metals in suspended particulate and bottom sediments of four microtidal river estuaries, west coast of India
(2019)The seasonal distribution of metals (V, Cr, Co, Cu, Ni, Zn, Pb, Mn, Fe, Al and Ti) in suspended and bottom sediments of four minor estuaries (Terekhol, Chapora, Sal and Talpona rivers) of Goa, India was investigated to ... -
Organic Nutrients Support High Primary Production in the Bay of Bengal
(2019)The Bay of Bengal (BoB) is known to experience low productivity but high sinking carbon fluxes to the bottom, and this paradox is attributed to mineral ballast of organic matter. We found for the first time that primary ... -
Trajectories of three drifters deployed simultaneously in the northeastern Arabian Sea
(2019)Three drifters were deployed in the northeastern Arabian Sea at (69.18◦E,19.77◦N). They were released roughly at the same time on 29 November 2016. The three drifters, initially moved poleward along the direction of the ... -
Vestiges of older greenstone in Mesoarchaean Chakradharpur granite gneiss, Singhbhum Craton, India: Implications for plume-lithosphere interaction at rifted cratonic margin
(2019)The Chakradharpur granite gneiss (CGG) represents an uplifted Archaean basement within the North Singhbhum Orogen (NSO) of Singhbhum-Orissa Craton in the eastern Indian shield and shares a Mesoarchaean 3.12�Ga age equivalent ... -
Buried channels provide keys to infer Quaternary stratigraphic and paleo-environmental changes: A case study from the west coast of India
(2019)High resolution shallow seismic data was acquired from inner continental shelf of Goa, west coast of India to map underlying stratigraphic and buried geomorphic features of shelf strata. Seismic data revealed characteristic ... -
The community structure of the deep-sea nematode community associated with polymetallic nodules in the Central Indian Ocean Basin
(2019)Technological advances have led to an increase in the number of investigations in the deep sea over the last two decades. However, despite a large number of scientific cruises, few published data on the nematode biodiversity ... -
Integrated geophysical appraisal of crustal structure and tectonic evolution of the Angria Bank, western continental margin of India
(2019)Angria Bank, a submerged plateau with coral reefs, is located off the central-west coast of India. Biologically, the bank attracts scientific community for its coral formations. But geologically, origin and tectonic setting ... -
Characterization of marine bacterial carbonic anhydrase and their CO2 sequestration abilities based on a soil microcosm
(2019)The novel technology of biological carbon sequestration using microbial enzymes have numerous advantages over conventional sequestration strategies. In the present study, extracellular carbonic anhydrase (CA) producing ... -
Carbon isotopic and biochemical fingerprints of sedimentary organic matter in lower Narmada and Tapi rivers, north-west coast of India
(2019)Sources of organic matter (OM) in lower Narmada and Tapiriver-estuaries were examinedusing organic carbon to nitrogen ratio (Corg/N),stable carbon isotope ratio ( 13Corg) andlignin phenol biomarkers. The signature of ... -
Ecological implications of recently discovered and poorly studied sources of energy for the growth of true fungi especially in extreme environments
(2019)Rhodopsin transmembrane proton pumps (fuelled by visible light which is absorbed by retinal (carotenoid) chromophores) exist in all three domains of living species and in all groups of true fungi studied. Light driven ... -
2D NMR Studies of Bromotyrosine Alkaloid, Purpurealidin K from Marine Sponge Psammaplysilla purpurea
(2019)Marine sponges of the order Verongida and related organisms are the richest source of bioactive bromotyrosine alkaloids. Purpurealidin K (1) along with purealidin Q (2), aerophobin 2 (3) and aplysamine 2 (4) were isolated ... -
Persistence of fecal indicator bacteria associated with zooplankton in a tropical estuary-west coast of India
(2019)In a study carried out during 2014, bacteria associated with zooplankton in the Zuari estuary were 3– 4 orders of magnitude higher in abundance than in seawater. The live zooplankton carried much more bacterial load ... -
Modifications in the trace gases flux by a very severe cyclonic storm, Hudhud, in the coastal Bay of Bengal
(2019)A very severe cyclonic storm, Hudhud, made landfall at Visakhapatnam city, the central east coast of India, on 12 October 2014 and it is the most destructive cyclone to ever hit the Indian subcontinent since the past two ... -
Distribution of total petroleum hydrocarbons in water, sediment and its impact on six commercially important fishes of Kundalika estuary, west coast of India
(2019)Kundalika estuary, which opens into the Arabian Sea along the west coast of India, receives effluents from industries situated on its bank. The Total Petroleum Hydrocarbons (TPHs) were studied using fluorescence spectrophotometer ... -
Extinction of Antimicrobial Resistant Pathogens Using Silver Embedded Silica Nanoparticles and an Efflux Pump Blocker
(2019)Control measures against antimicrobial resistant bacterial pathogens are important challenges in our daily life. In this study, we discuss the sensitivity and resistance of four bacterial pathogens, Vibrio alginolyticus, ...